43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/* pread.c -- version of pread for gold. */
|
|
|
|
/* Copyright (C) 2006-2020 Free Software Foundation, Inc.
|
|
Written by Ian Lance Taylor <iant@google.com>.
|
|
|
|
This file is part of gold.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
/* This file implements pread for systems which don't have it. This
|
|
file is only compiled if pread is not present on the system. This
|
|
is not an exact version of pread, as it does not preserve the
|
|
current file offset. */
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
|
|
extern ssize_t pread (int, void *, size_t, off_t);
|
|
|
|
ssize_t
|
|
pread (int fd, void *buf, size_t count, off_t offset)
|
|
{
|
|
if (lseek(fd, offset, SEEK_SET) != offset)
|
|
return -1;
|
|
return read(fd, buf, count);
|
|
}
|